Advice on Diving inCosta Rica

...ng its unique habitats with almost 30% of it protected in 26 national parks and protected zones. Diving occurs year round with seasonal temperature differences between the wet and dry season. The wet season is May through November and the dry season December through April. Average air temperatures range from 17-27C year-round, although there can be much variation between areas of elevation in the mountains. On the Pacific side the dry season has calmer and warmer waters 25-29C. In the wet season water temps can be as low as 17-23C and it is the best time to see schools of mantas, sting ra...